40144471 has 2 divisors, whose sum is σ = 40144472. Its totient is φ = 40144470.

The previous prime is 40144459. The next prime is 40144483. The reversal of 40144471 is 17444104.

40144471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (40144459) and next prime (40144483).

It is a cyclic number.

It is not a de Polignac number, because 40144471 - 2²³ = 31755863 is a prime.

It is a super-3 number, since 3×40144471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40144421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20072235 + 20072236.

It is an arithmetic number, because the mean of its divisors is an integer number (20072236).

Almost surely, 2^40144471 is an apocalyptic number.

40144471 is a deficient number, since it is larger than the sum of its proper divisors (1).

40144471 is an equidigital number, since it uses as much as digits as its factorization.

40144471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 40144471 is about 6335.9664614011. The cubic root of 40144471 is about 342.4064311860.

Adding to 40144471 its reverse (17444104), we get a palindrome (57588575).

The spelling of 40144471 in words is "forty million, one hundred forty-four thousand, four hundred seventy-one".